Message Board for PC version

I flooded the area and then a new task was given. Find the stalaker group`s stash. It was difficult to go up the ladder to the upper room,because it just doesnt fit in the hole where the ladder is but finally i managed to go in. When I got to the upper room where the stalker`s stash was supposed to be I just couldn`t find it! The room is empty or is it some kind of bug!? Help me do the task please